mention that 'got patch' is compatible with 'cvs diff -u' output
diff --git a/got/got.1 b/got/got.1
index 8576829..a9d816d 100644
--- a/got/got.1
+++ b/got/got.1
@@ -1298,7 +1298,9 @@ The patch must be in the unified diff format as produced by
.Xr git-diff 1 ,
or by
.Xr diff 1
-when invoked with the
+and
+.Xr cvs 1
+diff when invoked with the
.Fl u
option.
If no